2.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of ChileCL188 papers
- Centre National de la Recherche ScientifiqueFR116 papers
- Pontificia Universidad Católica de ChileCL62 papers
- Center for the Development of Nanoscience and NanotechnologyCL55 papers
- Universidad Diego PortalesCL54 papers
- Max Planck Institute for AstronomyDE46 papers
- Pontificia Universidad Católica de ValparaísoCL44 papers
- Université Grenoble AlpesFR44 papers
- University of CambridgeGB41 papers
- Atacama Large Millimeter Submillimeter ArrayCL38 papers
- Institut de Planétologie et d'Astrophysique de GrenobleFR36 papers
- University of the Basque CountryES36 papers
47 papers · 1 filter
Revisiting signatures of thermal axions in nonstandard cosmologies
Paola Arias, Nicolás Bernal, Jacek K. Osiński +2
We revisit the formation of a thermal population of hadronic axions in nonstandard cosmologies, in light of the recent developments in obtaining continuous and smooth interaction r…
Dark Matter from a Radiative Inverse Seesaw Majoron Model
Cesar Bonilla, A. E. Cárcamo Hernández, Bastián Díaz Sáez +2
We propose a Majoron-like extension of the Standard Model with an extra global -symmetry where neutrino masses are generated through an inverse seesaw mechanism at the 1-lo…
Dark Matter in a bi-metric universe
Carlos Maldonado, Fernando Mendez
We study the possibility to describe dark matter in a model of the universe with two scale factors and a non-standard Poisson bracket structure characterized by the deformation par…
Neutrino flavor mixing with approximate - symmetry within the low-scale minimal linear seesaw model
Ernesto A. Matute
Neutrino flavor mixing is explained within the recently proposed low-scale minimal linear seesaw model of neutrino mass generation, a variant of the standard linear seesaw led by a…
Dark Matter Axions in the Early Universe with a Period of Increasing Temperature
Paola Arias, Nicolás Bernal, Jacek K. Osiński +1
We consider the production of axion dark matter through the misalignment mechanism in the context of a nonstandard cosmological history involving early matter domination by a scala…
Low-scale minimal linear seesaw model for neutrino mass and flavor mixing
Ernesto A. Matute
We consider an extension of the Standard Model with three right-handed (RH) neutrinos and a Dirac pair of extra sterile neutrinos, odd under a discrete symmetry, in order to…
New opportunities for axion dark matter searches in nonstandard cosmological models
Paola Arias, Nicolás Bernal, Dimitrios Karamitros +3
We study axion dark matter production from a misalignment mechanism in scenarios featuring a general nonstandard cosmology. Before the onset of Big Bang nucleosynthesis, the energy…
Frozen-in fermionic singlet dark matter in non-standard cosmology with a decaying fluid
Paola Arias, Dimitrios Karamitros, Leszek Roszkowski
We perform a detailed study of dark matter production via freeze-in under the assumption that some fluid dominates the early Universe before depositing its energy to the plasma cau…
Hidden Photon Dark Matter Interacting via Axion-like Particles
Paola Arias, Ariel Arza, Joerg Jaeckel +1
We investigate a scenario where the dark matter of the Universe is made from very light hidden photons transforming under a -symmetry. In contrast to the usual situation, ki…
Neutrino mass generation from the perspective of presymmetry
Ernesto A. Matute
The Standard Model (SM) with one right-handed neutrino per generation is revisited with presymmetry being the global symmetry of an electroweak theory of leptons and q…
Ultraviolet Freeze-in and Non-Standard Cosmologies
Nicolás Bernal, Fatemeh Elahi, Carlos Maldonado +1
A notable feature of UV freeze-in is that the relic density is strongly dependent on the highest temperatures of the thermal bath, and a common assumption is that the relevant 'hig…
Reconstructing Non-standard Cosmologies with Dark Matter
Paola Arias, Nicolás Bernal, Alan Herrera +1
Once dark matter has been discovered and its particle physics properties have been determined, a crucial question rises concerning how it was produced in the early Universe. If its…
Anapole Dark Matter Interactions as Soft Hidden Photons
Paola Arias, Jorge Gamboa, Natalia Tapia
We propose a model where the anapole appears as a hidden photon that is coupled to visible matter through a kinetic mixing. For low momentum where is the cuto…
Establishing the Dark Matter Relic Density in an Era of Particle Decays
Carlos Maldonado, James Unwin
If the early universe is dominated by an energy density which evolves other than radiation-like the normal Hubble-temperature relation is broken and dark matter reli…
Measuring the Boiling Point of the Vacuum of Quantum Electrodynamics
Anthony Hartin, Andreas Ringwald, Natalia Tapia
It is a long-standing non-trivial prediction of quantum electrodynamics that its vacuum is unstable in the background of a static, spatially uniform electric field and, in principl…
Parametric Resonance in Quantum Electrodynamics Vacuum Birefringence
Ariel Arza, Ricardo Gabriel Elias
Vacuum magnetic birefringence is one of the most interesting non-linear phenomena in quantum electrodynamics because it is a pure photon-photon result of the theory and it directly…
Birefringence and hidden photons
Ariel Arza, Jorge Gamboa
We study a model where photons interact with hidden photons and millicharged particles through a kinetic mixing term. Particularly, we focus in vacuum birefringence effects and we…
Testing Dark Matter with the Anomalous Magnetic Moment in Quantum Electrodynamics Model
Ashok K. Das, Jorge Gamboa, Fernando Méndez +1
We consider a model of dark quantum electrodynamics which is coupled with a visible photon through a kinetic mixing term. After checking of consistency properties, we compute the $…
Mixing of photons with light pseudoscalars in time-dependent magnetic fields
Paola Arias, Ariel Arza and, Jorge Gamboa
The effects of an external time-dependent magnetic field in the conversion probability of photon-to-axion-like particles are studied. Our findings show that for a certain time regi…
Generalized Dirac duality and CP violation in a two photon theory
P. Arias, A. K. Das, J. Gamboa +1
A kinetic mixing term, which generalizes the duality symmetry of Dirac, is studied in a theory with two photons (visible and hidden). This theory can be either CP conserving or CP…
Hidden Photons in Aharonov-Bohm-Type Experiments
Paola Arias, Christian Diaz, Marco Aurelio Diaz +3
We discuss the Aharonov-Bohm effect in the presence of hidden photons kinetically mixed with the ordinary electromagnetic photons. The hidden photon field causes a slight phase shi…
Presymmetry in the Standard Model with adulterated Dirac neutrinos
Ernesto A. Matute
Recently we proposed a model for light Dirac neutrinos in which two right-handed (RH) neutrinos per generation are added to the particles of the Standard Model (SM), implemented wi…
Neutrino mass generation with extra right-handed fields in a Dirac scenario via the type-I seesaw mechanism
Ernesto A. Matute
An extension of the Standard Model (SM) is studied in which two right-handed (RH) neutrinos per generation are incorporated, but considering the hypothesis of the symmetry of lepto…
Analogies between nuclear physics and Dark Matter
Dante Carcamo, Alejandro Riveros, Jorge Gamboa
A fermionic description of dark matter using analogies with nuclear physics is developed. At tree level, scalar and vector processes are considered and the two-body potential are e…